[ccp4bb] AW: [ccp4bb] desiring untouched ligand

2014-08-20 Thread Herman . Schreuder
] desiring untouched ligand Hi all and thanks for your input. I am trying to fix a sugar chain that has consecutive glucoses and I need the angle C-O-C to be as close to 104 degrees as possible keeping alpha bonds between the sugars, so when I do a Real Space Refinement in Coot, the structure gives

Re: [ccp4bb] desiring untouched ligand

2014-08-15 Thread Remie Fawaz-Touma
Hi all and thanks for your input. I am trying to fix a sugar chain that has consecutive glucoses and I need the angle C-O-C to be as close to 104 degrees as possible keeping alpha bonds between the sugars, so when I do a Real Space Refinement in Coot, the structure gives angles close enough to

Re: [ccp4bb] desiring untouched ligand

2014-08-14 Thread Philip Kiser
Remie, Look at the following webpage: http://www.ysbl.york.ac.uk/refmac/data/refmac_news.html The harmonic restraints need to go into a "keyword" file that is uploaded to the "refmac keyword field" field in the GUI. Philip On Thu, Aug 14, 2014 at 11:11 AM, Remie Fawaz-Touma wrote: > Thank y

Re: [ccp4bb] desiring untouched ligand

2014-08-14 Thread Remie Fawaz-Touma
Thank you Dr. Murshudov for the information. But please I still need help. In restrained refinement, I could not find where to enter the residues I want to restrict from moving much. I was only able to find that in rigid body refinement, so I tried it and got a higher R factor than the initial f

Re: [ccp4bb] desiring untouched ligand

2014-08-13 Thread Garib Murshudov
Hi Remie, You can add harmonic restraints for parts you do not want to move too much. Instructions could be found here: http://www2.mrc-lmb.cam.ac.uk/groups/murshudov/content/refmac/refmac_keywords.html#Harmonic Regards Garib On 13 Aug 2014, at 15:44, Remie Fawaz-Touma wrote: > Hi everyone,

[ccp4bb] desiring untouched ligand

2014-08-13 Thread Remie Fawaz-Touma
Hi everyone, Does anyone know of a way to refine with CCP4 - Refmac5 (restrained refinement is what I do) fixing a part of the the ligand? Thank you very much for your input, Remie